The secretaries have asked for lounge areas for their coffee breaks; this request is refused on the grounds that next they will ask for spas and swimming pools, then yoga centres and fitness gyms, and the expenditure will drive us into bankruptcy. Which fallacy is committed in the above argument?

The refusal assumes one small concession must trigger a chain ending in ruin.

Granting lounge areas is projected to lead to spas, pools, yoga centres and gyms.

That chain is then said to force the organisation into bankruptcy.

No reason is given why each step must inevitably cause the next.

Predicting disaster from an unsupported chain of consequences is the slippery slope.